Has the same rim as #5 trumpet, a little shallower cup than #3. This mouthpiece is excellent for ensemble playing and has good intonation and flexibility. It enhances the upper register without a loss of tone quality. This is also a good jazz mouthpiece. Exactly like #5FLB, except a larger venturi drill offering a darker tone. MMP Brasswind Flugelhorn. Postage & Package: free